modify installation result page template

packages/slackbot-proxy/src/views/install-failed.ejs

@@ -4,7 +4,7 @@
   <div class="container">
     <div class="row">
       <div class="col text-center">
-        <h1 class="my-5">GROWI Bot installation failed</h1>
+        <h1 class="my-5">GROWI Bot installation failed..</h1>
         <p>
           Retry from
           <a href=<%- url %>>

packages/slackbot-proxy/src/views/install-succeeded.ejs

@@ -5,7 +5,7 @@
     <div class="row">
       <div class="col text-center">
         <h1 class="my-5">Congratulations!</h1>
-        <h2 class="my-5">GROWI Bot installation has succeeded.!</h2>
+        <h2 class="my-5">GROWI Bot installation has succeeded!</h2>
         <p>
           Retry from
           <a href=<%- appPageUrl %>>